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The Science

DosePlot estimates your blood levels over the life of a protocol using established pharmacokinetics and real compound half-lives -- then tunes the curve to your own bloodwork. Grounded in the science, calibrated to you.

Not medical advice. The charts are theoretical estimates, not clinical measurements. They are based on population-average pharmacokinetics and do not account for individual variation in absorption, metabolism, body composition, or other factors. Do not use them to make clinical decisions. Always work with a qualified healthcare provider.

Source quality note. Published pharmacokinetic data (half-lives, time-to-peak) for grey-market compounds is often limited, and some peptides and research chemicals have very little literature at all. DosePlot draws on the best available sources, but treats these values as estimates, not ground truth.

Modeling the real process

When you inject a compound, it does not appear in your bloodstream all at once. It absorbs from the injection site over time while your body steadily clears what is already circulating. DosePlot models both of those competing processes -- the rise as a dose absorbs, the peak when absorption and clearance balance, and the fall as clearance takes over.

Across a repeating protocol those individual doses overlap. Levels accumulate dose after dose and climb toward a steady state, with predictable peaks and troughs between injections. That is the curve DosePlot draws: not a single number from a table, but how your levels actually move over the weeks of a cycle.

The shape of each curve comes from each compound's own pharmacokinetics -- its half-life and how quickly it reaches its peak. Compounds in the same family, like multiple testosterone esters, are combined so you can see your total level, not just one ester at a time.

Calibrated to you

Population averages are a starting point, not the final answer. Two people on the identical protocol can land at very different blood levels. That is why DosePlot lets you anchor the model to your own biology.

When you record a bloodwork draw taken while on a protocol, DosePlot can tune the chart to match your measured level. From then on the curve reflects how you personally respond -- a closer, more honest estimate than any generic average -- and you can always compare what the model predicted against what your labs actually showed.

Still an estimate. Even calibrated, the chart is a model, not a measurement. Your real levels depend on factors no model fully captures. Use the chart to understand trends and timing, and use bloodwork for the truth.

What the model does not do

Being honest about the limits is part of the point. The chart is a planning and tracking aid, and a few things sit outside what it can tell you:

  • Individual variation is large. Your actual levels can differ substantially from a population-average estimate.
  • Oral compounds and many peptides have limited published data -- treat those curves as rough guides, not precise predictions.
  • It does not model suppression, recovery timelines, drug interactions, or disease states.
  • It is not a substitute for bloodwork or for clinical care.